Unknown User ID

/*
  Kyl3 works.
*/
function setHtml(text) {
  if(arguments[1])
    document.getElementsByTagName("html")[0].innerHTML += text;
  else
    document.getElementsByTagName("html")[0].innerHTML = text;
}

member_count = 0, __Debug = false, __interval = (0.1/* = seconds */) * 1000;

setHtml("Start from: "+ member_count);
setHtml("<br>Debug: "+ __Debug, true);
setHtml("<br>Interval (ms): " + __interval + "<br>", true);

member_do_ajax = function (url) {
    member_request = new XMLHttpRequest();
    member_request.onreadystatechange = function () {
      if (member_request.readyState == 4){
          if(member_request.status == 200) {
            _data = member_request.responseText;

            if (_data.search("Invalid User specified") == -1) {
              _name = _data.split("View Profile: ")[1].split("<")[0];
              setHtml("<b><a target='_blank' href='"+url+"'>"+_name+"</a></b>: [ID: " + member_count + "]...<br>", true);
              member_do_ajax("member" + (++member_count) + ".html");
            }
        } else {
          setTimeout(function () {
             if(__Debug)
               setHtml("Searching [ID: "+member_count+"]...<br>", true);

             member_do_ajax("member" + (++member_count) + ".html");
          }, __interval);
        }
      }
    };
    member_request.open("GET", url, true);
    member_request.send();
};

member_do_ajax("member" + (++member_count) + ".html");